A Junior Technologist's Field Change Without Authorization
You are the senior technologist on a bridge rehabilitation. A junior technologist on your team, wanting to keep the crew productive during your two-day absence, authorized a field change: moving 14 anchor bolt locations 75 mm to avoid rebar congestion, marked on the deck with spray paint, and told the ironworkers to proceed. The structural drawings show the anchors at fixed locations with a note requiring engineer approval for any deviation. The ironworkers have drilled 6 of 14 holes. The design engineer is on another site and has not been contacted. The junior technologist tells you privately that they did it because the crew would otherwise have been idle for two days and the schedule is already behind.
1. What are your immediate actions, and what do you do about the junior technologist?
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Immediate actions: stop work on the remaining eight anchors and do not allow grouting or epoxy of the six drilled holes. Photograph and measure the as-found conditions, including rebar locations, and document the spray-paint layout. Notify the design engineer and the contract administrator in writing the same day, describing the deviation and requesting a documented disposition. Notify the contractor that work is suspended pending that disposition. Do not attempt to rationalize the change after the fact.
Regarding the junior technologist: this is a competence and accountability issue, not a personality one. Explain clearly why field changes to structural connections require engineer approval, and that schedule pressure never transfers authority. Report the event through your organization's internal process so it is documented and addressed consistently. Consider it a coaching opportunity first, but ensure the individual understands that repeating it could constitute practice outside their scope and expose them and the firm to liability.
2. The engineer later approves the relocated anchors but requires enlarged plates. Who bears the cost of the six already-drilled holes, and how do you document the resolution?
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Cost allocation follows the contract and the cause. The unauthorized direction came from your side, not the owner or designer, so the rework cost for the six holes and any remedial work generally falls to the party that issued the direction, subject to the contract's terms and any insurance position. Do not concede or assign cost verbally on site. Document the sequence of events factually with dates and times, the engineer's written disposition, the revised detail, and the as-built record of each anchor location. Issue a formal field change or site instruction through the contract administrator so the commercial treatment is decided by those with authority, and keep the technical record separate from the cost argument.